ITI's which provides courses for Mechanic Medical Electronics

Sem. I

Sr. No.

Subjects of Study

Trade Practical

Trade Theory

1

Practice fixing of screws of different sizes on wooden board. Practice of Cutting on wooden blocks using Tenon saw/6 inch hand saw Drill holes on wooden boards using Electric/Hand Drill Machine. Smoothen the blunt surfaces using suitable files Repeat the above tasks on Metal and Plastic sheets. Practice the electrical safety norms Practice the Mock treatment of electrical shock.

Introduction to NCVT and its certification mechanism Semester system and its flexibility for the Trainee and to the Institute. EM Trade and its applicability in industries. Expectations of the Industry from trainees after the completion of the Trade. The skills to be acquired to become part of industry.

2

Identify the Live, Neutral and Earth on power socket. Construct a test lamp and light a lamp Use a Tester to monitor AC power. Measure the unwanted voltage between the neutral and Ground and take measures to reduce it.

Acuke­tetou such as electric charges, Potential difference, Voltage, Current, Resistance. Basics of AC & DC. Terms such as +ve cycle, -ve cycle, Frequency, Time period, RMS, Peak, P-P, instantaneous value.

3

Measure and Test the voltage of the given primary/secondary cell(s). Charge and discharge the cell while measuring the respective Voltage and currents. Measure the voltage and current at different terminals of a resistive circuit Identify and electromagnet and a permanent magnet.

Battery & Cells: construction, types of primary and secondary cells, materials used, specification of cells and batteries. Charging process, efficiency, shelf life, Selection of cells / Batteries etc. Use of Hydrometer. Types of electrolytes used in cells and batteries.

4

Identify different transformers Measure the primary and secondary winding resistances for transformers of different capacities (up to 500 VA) Identify different sizes, shapes of cores used in low capacity transformers.

Working principle of a Transformer, Transformer construction, Types of cores used Specifications of a transformer. Step-up, Step down and isolation transformers with applications. Different type of losses in Transformers.

5

Identify and Test Permanent Magnet DC motor Identify and Test Brushless DC motor Identify and Test stepper motor Identify and familiarize with various types of fuses with their bases.

DC Motor construction, sub assemblies, commutators, carbon brushes, interpretation of name plate specifications, conventional speed control methods and applications.

6

Identify Resistors of different types (include NTC, PTC, W/W, Log, Linear, preset, VDR, LDR) values and power ratings. Use colour code to identify the Resistors and values.

KVL & KCL with applications: Resistor -definition, types of resistors, their construction & specific use, color-coding, power rating, Equivalent Resistance of series parallel ckts. Distribution of V & I in series parallel ckts.

7

Identify Si and Ge diodes Record any ten Diode component numbers (both Si & Ge) from Data book with their specifications.(If, PIV and forward voltage drop) Identify any five different packaging styles of Diodes with respective heat sinks Response of a Diode for different AC and DC voltages Test the PIV and Forward current of the given diode Construct and test Diode as a half wave, full wave and Bridge rectifier.

Semiconductor component number coding for different electronic components such as Diodes, Zeners, Transistors, FETs, MOSFETs, IGBTs

8

Identify PNP and NPN Transistors Record any ten Transistors numbers (both NPN & PNP) from Data book with their specifications.

Construction, Working of a PNP and NPN Transistors. Purpose of E,B & C Terminals. Flow of currents into and out of terminals of PNP/ NPN Transistors and their relations.

9

Identify any five FET Transistors and record main parameters from the Data book Test the given FET (at least 5 no’s) and record the impedances.

Construction of FET, differentiate it with BJT. Purpose of Gate, Drain and source terminals and voltage/current relations between them

10

Dismantle an Analogue multimeter and identify components/sections and trace path for measurement of V, I & R. Measure the indicator coil voltage corresponding to different measurements.

Working principle of PMMC type ammeter. Conversion of ammeter into voltmeter.

11

Identify different electrical cables of various gauges and of different insulation strength.

Classification of cables according to gauge, core size, insulation strength, flexibility etc.

12

Select a soldering gun and practice soldering of different electronic active and passive components/digital ICs on varieties of PCBs. Join the broken PCB track and test.

Different type of soldering guns, relate temperature with wattages, types of tips.

13

Measure logical high and low for TTL and CMOS ICs. Identify by the number and Monitor the clock frequency of different crystal ICs on CRO and measure it.

Difference between analogue and digital signals, Iogic levels of TTL and CMOS Introduction to Digital Electronics, Number systems and codes Digital code.

14

Wire and illuminate LEDs of different sizes and observe the current drawn. Expose LDR different lights and Record the variation in resistance.

IR LEDS, Photo diode for photo transistor, its characteristics and application, optical sensor, opto-couplers, circuits with opto isolation, characteristics of LASER diodes.

15

Construct and test voltage divider bias Construct and Test a common emitter Amplifier, Construct and Test common base amplifier, Construct and Test common collector amplifier, Construct and Test Darlington amplifier

Transistor biasing circuits and stabilization techniques.

16

Construct and test Class A amplifier. Construct and test Class B amplifier, Construct and test Class AB push pull amplifier, Construct and test a single stage CE amplifier with and without emitter bypass capacitor.

Classification of amplifiers according to frequency, mode of operation, methods of coupling.

17

Construct an emitter follower, RC coupled amplifier Construct and test push pull power amplifier Construct and test oscillator using a HF transistor.

Distinguish between voltage and power amplifier, Types and effect of negative feedback in amplifiers, Working of emitter follower circuit and its advantages.

18

Construct and test as table multivibrator circuit, Identify and test Transistors of different packaging styles.

Types of multivibrators and study of circuit diagrams Transistor power ratings & packaging styles, use of different heat sinks.

19

Construct and Test Half Adder circuit and verify the truth table.  Construct and Test Full adder and verify the truth table.

Combinational logic circuits such as Half Adder, Full adder, Parallel Binary adders. IC 7482 as 2-bit and four bit full adders.

20

Construct and test four bit latch using 7475. Identify different Flip-Flop (ICs) by the number printed on them. Verify the truth tables of Flip Flop ICs (D, T, RS, JK) by connecting switches and LEDs. Identify & Wire a Master-Slave Flip Flop and Test the truth table.

S-R Latch, Gated S-R Latch, DLatch. Flip-Flop: Basic RS Flip Flop, edge triggered D Flip Flop, JK Flip Flop, T Flip Flop Clocked Flip Flop, Master-Slave flip flops and Timing Diagrams.

21

Construct and test a four bit asynchronous binary counter using 7493. Connect 7493 as a modulus-12 counter. Construct and test a four bit Synchronous binary counter using 74163.

Basics of Counters. Two bit and three bit Asynchronous binary counters and decade counters with the timing diagrams.

22

Construct the shift register using RS/D/JK flip flop and verify the result Construct and test four bit SIPO register Construct and test four bit PIPO register Construct and test two digit Seven segment LED/ Decoder-Driver circuits.

Shift Register functions, Serial to parallel and vice versa, Parallel to parallel and serial to serial, Bidirectional shift registers, Timing diagram, important applications.

Project Work

Sem. II

Trade Practical

Trade Theory

1

Construct RC circuit and measure the Time constant by measuring voltages. Construct and test a simple high pass RC circuit and observe the integrated output for applied input.

Time constants of RC & RL circuits. Diode shunt and series clipper circuits and clamping/limiting circuits and their applications. RC based Differentiator and Integrator circuits

2

Construction and testing of various Op-Amp circuits like Inverting, Non-inverting and Summing Amplifiers, Differentiator and Integrator Integrator.

Introduction to Differential amplifier: construction & working block diagram of Op-Amp, importance, Characteristics, common-mode gain, advantages and applications.

3

Instrumentation Amplifier.

Block diagram of 555, functional description wrt different configurations of 555 such as monstable, astable and vco operations for various application

4

Measure using CRO – DC Voltage, AC voltage, Period & Frequency & and observe different wave forms Troubleshooting CRO Vertical Preamplifier & all other sections (a) to (c).

Study of CRO : Specifications and block diagram , Familiarization with front panel and controls of a CRO.

5

Identify and test DIODE/SCR Power bridge Identify and test MOSFET Power bridge Identify and test IGBT Power bridge Connect the heat sinks to the above power bridges.

Power MOSFET, IGBT – their types, characteristics, switching speed, power ratings and protection.

6

Identify different fixed +ve and –ve voltage regulator ICs of different current ratings (78/79 series) along with i/o, reference pins.

Regulated Power supply using 78XX series, 79XX series, Op-amp regulator, 723 regulator, (Transistorized & IC based) voltage regulation, error correction and amplification etc.

7

Identify different front panel controls and connectors of the given power supply.

Specifications & block diagram of Linear power supplies.

8

Dismantle the given stabilizer and find major sections/ICs/ components.

Manual & automatic and servo voltage stabilizers-concept and block diagram, o/p voltage adjustment, voltage cut off systems, study of different types of relays used in stabilizers, study of electronic circuit commonly used, buck and boost concept.

9

Construct and test step up type chopper circuit, Construct and test step down type chopper circuit, Construct and test inverter type chopper circuit

Various types of chopper circuits step-up, step down, inverting types.

10

Identify various input and output sockets/connectors /indicators on the given UPS

Electrical wiring for Single phase and Three phase systems, Earthing and earth resistance measurement, and calculation of load power and power factor of a power source.

11

Identify isolator transformer, inverting transformer and control transformers.

Types of UPS. Block diagram and working principle of different types UPS. Specifications of a typical UPS.

12

Identify and draw different active, passive components using symbols

Identify different active, passive components using symbols

13

Identify foot prints for different analogue /digital electronic (lead and SMD ) components Prepare layouts for simple analogue/digital circuits

Identify foot prints for different analog /digital electronic (lead and SMD ) components Prepare layouts for simple analog/digital circuits

14

Identification of 2/3/4 terminal SMD components Soldering / de-soldering of above components

Identification of 2/3/4 terminal SMD components Soldering / desoldering of above components

15

Familiarize with the Microprocessor kit, identify different ICs on the kit.

Intro to 8085 Microprocessor, Architecture, pin details and Bus System of the processor

16

Use assembler to assemble the programs and load them for execution by the processor Program to Blink an LED using port pins of 8255.

Interfacing to memory ICs RAM, PROM/EEPROM Interfacing different peripheral ICs such as 8255.

17

Write the RAM and ROM address ranges (internal and external) of the given Microcontroller kit

Differentiate Microprocessor and Microcontroller, Architecture of 8051 family of Microcontrollers, pin diagram and various on chip resources.

18

Enter simple programs, execute and monitor the results, Configure the port pins as input and output and apply inputs to activate/deactivate LEDs

Register Banks and their use, Memory mapping of the microcontrollers, bit addressable registers (bit memories).

19

Use the timer as an event counter to count external pulses. Execute a program to flash a set of 4 LEDs connected to port pins on the kit

Special function registers (SFRs) and their configuration for various applications. Input / output ports and their configuration

20

Cutting, cleaning and preparing of fibre cable for splicing, Splicing of OFC using splicing machine. Testing of OFC using OTDR.

Intro to optical fibre as a transmission media, its advantages over other media. Working principle of transmitter and receiver in fibre optic communication.

Project Work

Sem. III

Trade Practical

Trade Theory

1

Bio medical Charts

History of Biomedical Engineering, Instrumentation, Man Instrumentation system, Physiological system of the Body, Medical Terminology. Various departments in Hospital, Classification of Hospitals, Introduction to anatomy, Human Physiology, Electrophysiology

2

Familiarize with the Microprocessor kit, identify different ICs on the kit. Observe the voltage/ waveforms on different ICs and IC pins of the processor.

Intro to 8085 Microprocessor, Architecture, pin details, Function of different ICs such as decoders, buffers, latches etc used with 8085 processor, Interfacing to memory ICs RAM, PROM/EEPROM Interfacing different peripheral ICs such as 8255.

3

Identification of different types of transducers and sensors. Testing the condition of the different types of transducers and sensors.

The transducer principles, Active Transducers. Passive Transducers, Displacement Velocity & Acceleration, Pressure Transducers, Sensors, etc.

4

Charts, Identification of different types of components used in Bioelectric amplifiers

Cells and their structure, Bioelectric potentials, Sources of Bioelectric potentials, Resting & Action potentials, ECG, EEG & Other Bioelectric potentials, Bioelectric amplifiers

5

Identification of different cables & Connectors used in Biomedical equipment,  Practice on assembling & Dismantling techniques, etc

Different cables, connectors for various Bio-medical equipment applications.

6

Identification & Testing of different controls of the related equipment.

Introduction, Balances, Hot plate and Magnetic Stirrer, Centrifuges, Hot air oven, Incubator, Water bath, Microscope, Colorimeter and Spectrophotometer.

7

Identification & Testing of different controls of the related equipment.

Electromagnetic Spectrum, Vacuum tubes, Electric shock, Electric stimulation of Nerve & Muscle, Faradic-type current, Interrupted Direct current, Iontophoresis.

8

Identification & Testing of different controls of the related equipment.  Operate the different controls of the related equipment.  Troubleshooting & Maint. aspects.

Sterilization & disinfection, Central sterilization, methods of sterilization, Maintenance, Inspissator, A candle jar, Sterilization in Autoclave.

Project Work

Sem. IV

Trade Practical

Trade Theory

1

Identification & Testing of different controls of the related equipment. Operate the different controls of the related equipment.  Troubleshooting & Maint. aspects

X-Ray: Basic physics. Different components of X-ray machine, Block diagram of X-ray machine, H.T. Generator, X-ray tubes, Scattered radiation & Secondary radiation controls, Collimator, Bucky Grids, Relays, contactors, Switches, Interlocking circuits, Digital Xray concepts, X-ray films, Screens, Darkroom system & Procedure, Dental X-ray machine.

2

Identification & Testing of different controls of the related equipment.

Ultrasound scanners

3

Identification & Testing of different controls of the related equipment.

The Heart & Cardiovascular system, Electrocardiography

4

Identification & Testing of different controls of the related equipment.

Elements of Intensive-Care Monitoring, Patient monitoring displays, Defibrillators, Pacemakers, EMG, EEG, Monitors

5

Identification & Testing of different controls of the related equipment.

The physiology of respiratory system, Instrumentation for the mechanics of breathing, Inhalators, Ventilators and Respirators, Humidifiers.

6

Identification & Testing of different controls of the related equipment.

Principles of air conditioning and refrigeration, Types of pumps and compressors, Principle of operation.

7

Safety aspects, Study of all types of shocks and effects. How to prevent these shocks?

Clinical safety and chemical safety. Complete House wiring layout, Circuit splitting load wire, I.E. rules, Multistoried house wiring system, Earthing as per I.E. rules, Fault finding techniques, Electrical safety and leakage current in Medical Equipment, EMI, and ESD.